Ultrasonic generator unit housing



FIG. 1 is a perspective view of the ultrasonic generator unit housing, as seen from the back and one side, showing my new design;

FIG. 2 is a front view in elevation of the ultrasonic generator unit housing of FIG. 1;

FIG. 3 is a perspective view of the ultrasonic generator unit housing of FIG. 1, as seen from the bottom and one side; and,

FIG. 4 is a back view in elevation of the ultrasonic generator unit housing of FIG. 1. 

The ornamental design for an ultrasonic generator unit housing, substantially as shown and described. 